TM 1-1520-238-23
7-509
7.133.
SURGE VALVE EXHAUST HOSE REPLACEMENT – continued
7.133.3. Removal
a. Remove surge valve exhaust hose (1).
(1) Loosen two clamps (2) and (3).
(2) Remove hose (1) from exhaust duct (4) and
surge valve (5).
(3) Remove clamps (2) and (3) from hose (1).
(4) Remove and discard hose (1).
7.133.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
7.133.5. Inspection
a. Check surge valve and clamps for burrs,
cracks, dents, and nicks (para 7.114).
b. Check removed and attaching parts for corro-
sion (para 1.49).
7.133.6. Installation
a. Install new hose (1).
(1) Install two clamps (2) and (3) loosely on hose
(1).
(2) Install hose (1) on duct (4) and valve (5).
(3) Install clamps (2) and (3).
b. Inspect (QA).
c. Perform pressurized air system leak check
(para 7.115).
d. Unfold catwalk (para 2.83).
e. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
M04-079-2
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